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Finding the Fourth Proportional to 165,625.80, 248,438.70 and 115,600.20

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Solution

The fourth proportional to 165,625.80, 248,438.70 and 115,600.20 is: 173,400.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,625.80 : 248,438.70 = 115,600.20 : x
  2. Step 2: Convert to fraction form
    165,625.80/248,438.70 = 115,600.20/x
  3. Step 3: Cross multiply
    165,625.80x = 248,438.70 × 115,600.20
  4. Step 4: Simplify right side
    165,625.80x = 28,719,563,407.74
  5. Step 5: Solve for x
    x = 28,719,563,407.74/165,625.80
  6. Step 6: Final answer
    x = 173,400.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.